Remove some now-unused code (geekosaur)
Triple sword tiles (roctavian, 9031)
Add a mutation that powers up wands, but makes them use MP.

Level 1:  6 MP -> 17% more power
Level 2: 12 MP -> 34% more power
Level 3: 18 MP -> 50% more power

Mark wands at temporarily "useless" if no MP to zap them.

Signed-off-by: Brendan Hickey <brendan@bhickey.net>
Add Shadow Dragon Armour

A heavy armour that makes you stealthier than if you were naked.
(Stlth++++, a net positive of Stlth+.)

AC and EV are based on storm dragon armour: 10/15 respectively.
A first pass at quicksilver dragon armour.

Base AC 10 (same as PDA, since quicksilver dragons and pearl dragons
have the same AC), encumbrance 6 (one point higher than MDA),
unenchantable. (That is, always +0.) Also, MR+.
Export MR+ to a const
Add claymore tiles to UNUSED
Don't give Roxanne a wand (rchandra)

She is a statue!